I walked and swam when I was really bad, I tried to run a few times as everyone will say wear urself out to sleep better but it never helped me. But I also was told it would rev up symptoms so I was too scared to for ages. I go to gym every day now and lift heavy weights and do pretty intense cardio, but I have bad knees too so I have to be careful. It doesn’t rev me up at all but I am a year off. Slow and steady wins the race. Walking is best early on x